Slide Presentation

TITLE    (click title to view slides)
Non-Selective Applicators for the Control of Palmer Amaranth

AUTHOR
Eric P. Prostko
Professor and Extension Weed Specialist
University of Georgia

DOWNLOAD PRESENTATION    (right click and select 'Save Target As...')
• PowerPoint - 15.7 MB
• PDF - 1.7 MB

TABLE OF CONTENTS
  1. Non-Selective Applicators for the Control of Palmer Amaranth
  2. Herbicide-Resistant Palmer Amaranth in GA
  3. Palmer Amaranth Control Tactics
  4. Non-Selective Applicators or (Custer’s Last Stand)
  5. History of Non-Selective Applicators
  6. Non-Selective Applicators
  7. What are the benefits of NSA’s?
  8. NSA Research 2009-2010)
  9. "Traditional" Gravity-Flow Rope-Wick
  10. WickMaster® Ropewick
  11. GrassWorks WeedWiper
  12. TopCrop Super Sponge Weed Wiper
  13. LMC-Cross Wick Bar
  14. Biomass Harvest
  15. Palmer Amaranth Control and Weed Biomass Reduction with Gramoxone Inteon Applied in WeedWiper or Top Crop Wiper
  16. WeedWiper vs. TopCrop Wiper
  17. Summary of Palmer Amaranth Control (%) with Non-Selective Applicators Using Gramoxone Inteon
  18. 37.5% Gramoxone Inteon Solution -- Translocation and/or Stem Runoff?
  19. Non-Selective Applicators Work Well in Peanut
  20. Section 24C SLN For Gramoxone Inteon
  21. Our First Attempt in a Real Field -- Tift County, August 2010 (3 DAT)
  22. How will they work in soybean and cotton?
  23. Applicator Costs
  24. Future Research
  25. Tips for Using NSA’s
  26. Questions?



SLIDE CONTENTS
  1. Non-Selective Applicators for the Control of Palmer Amaranth Eric P. Prostko, Ph.D. Professor and Extension Weed Specialist Department of Crop & Soil Sciences
  2. Herbicide-Resistant Palmer Amaranth in GA ALS (2000) Glyphosate (2005) Atrazine (2009) ALS + GLY (2009) DNA + ALS + GLY (2010) ALS + GLY + ATZ (2011)
  3. Palmer Amaranth Control Tactics Start Clean Irrigation Tillage Extreme Cover Crops Residual Herbicides Timely POST’s Others Hand-Weeding $30-100/A Non-Selective Applicators
  4. Non-Selective Applicators or (Custer’s Last Stand)
  5. History of Non-Selective Applicators 1909 – Insecticide Wiper 1940’s – burlap sack tied to spray boom 1966 – wax bar 1970 – recirculating sprayer 1977 – carpet roller 1978 – rope-wick 1979 – wet apron 1980 – continuous belt 1982(?) – fabric, sponge or fiber brush wiper 1983 – rotary wiper Source: C.G. McWhorter and M.R. Gebhardt, eds. 1987. Methods of Applying Herbicides. WSSA Monograph Number 4, pages 207-229.
  6. Non-Selective Applicators What are the benefits? Are they effective? How much do they cost? Weed Wiper Coffee Co., GA 2010
  7. What are the benefits of NSA’s? Improved harvest efficiency Improved fungicide deposition Reduction in weed seed Cheaper than hand-weeding? REVENGE!!!!!
  8. NSA Research 2009-2010) non-crop; 8 trials to date 6’ X 40-50’ plots 3-4 replications Tractor Speed = 3.1-4.1 mph Applicator Height = 20” 15” (WeedWiper vs. LMC-Cross Wick Bar) Natural populations of AMAPA Select: grasses Strongarm: morningglory Cultivate wheel tracks 16”- 86” tall plants (46” average)
  9. “Traditional” Gravity-Flow Rope-Wick
  10. WickMaster® Ropewick
  11. GrassWorks WeedWiper™
  12. TopCrop Super Sponge Weed Wiper
  13. LMC-Cross Wick Bar
  14. Biomass Harvest Lawn Genie B.C. Mathews Co. Crystal Lake, IL
  15. Palmer Amaranth Control and Weed Biomass Reduction with Gramoxone Inteon (50%, -NIS) Applied in WeedWiper or Top Crop Wiper - 2010 PIG-07-10 September 21 29 DAT % LSD 0.10 = NS AMAPA = 36-86” tall, 66” avg.
  16. WeedWiper vs. TopCrop Wiper 50% Solution of Gramoxone Inteon 3.1 MPH, 20” Applicator Height AMAPA = 36-86” tall, 66” avg. NTC WeedWiper TopCrop PIG-07-10 9/21/10 29 DAT
  17. Summary of Palmer Amaranth Control (%) with Non-Selective Applicators Using Gramoxone Inteon **50:50 solution of Gramoxone Inteon and water except Trial #4 (25%)
  18. 37.5% Gramoxone Inteon Solution Translocation and/or Stem Runoff? PIG-01-10 July 3 18 DAT
  19. Non-Selective Applicators Work Well in Peanut Peanuts only get 12-18” tall (except GA-02C)
  20. Section 24C SLN For Gramoxone Inteon Peanut GA, SC, FL Late summer - 2010 50% solution Palmer amaranth Florida beggarweed
  21. Our First Attempt in a Real Field Tift County, August 2010 (3 DAT) Potential Problems No gauge wheel Hydraulic lift problem No check valve on pump Roller Speed Tall peanut variety (GA-02C) Dumb A** Scientist
  22. How will they work in soybean and cotton? Height differential Crop response Legal or not?????
  23. Applicator Costs 20’ Weed Wiper + gauge wheels + 40 gallon tank = $6800 20’ Wickmaster = $5500 6-Row (18’) LMC-Cross Wick Bar = $6225 15’, front mount, pump fed, TopCrop Weed Wiper = $1995
  24. Future Research Applicator Height Roller Speed Crop Response Time of day Other Herbicides Ignite Cobra Economics
  25. Tips for Using NSA’s All are not equal! At least 50% of the plant must be wiped/wicked. Tractor not starship! Before seed is formed! Within 2 weeks after pollination Read operator manual Minimize dripping Stewardship
  26. Questions? www.gaweed.com